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# A divergent lens of focal length 30 cm forms the image of an object of size 6 cm on same side as the object at a distance of 15 cm from optical centre.Use lens formula to determine the distance of the object from the lens and size of image formed and also draw the ray diagram?

Asked by Vikas 16th March 2017, 4:45 PM

Hi Vikas,

The following steps are to be followed:

1) Take focal length as negative (divergent lens), object size is given

2) It is mentioned image is on the same side of the object. So, take image distance as negative.

3) Use lens formula to find object distance 'u'. It should be negative.

4) Use magnification formula to find the height of the image.

For complete solution kindly post the query in ask the expert section.

Answered by Expert 16th March 2017, 5:54 PM

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## The rain water from a roof 22 m × 20 m drains into a conical vessel having a base of diameter 2 m and height 3.5 cm. If the vessel is just full, find the rainfall in mm.

Asked by shailesh.solanki 18th March 2018, 7:37 PM

## The rain water from a roof 22 m × 20 m drains into a conical vessel having a base of diameter 2 m and height 3.5 cm. If the vessel is just full, find the rainfall in mm.

Asked by shailesh.solanki 18th March 2018, 7:35 PM

## A wooden toy was made by scooping out a hemisphere of same radius from each end of a solid cylinder. If the height of the cylinder is 10 cm, and its base is of radius 3.5 cm, find the volume of wood in the toy. Use pie=22/7

Asked by shailesh.solanki 18th March 2018, 7:34 PM